http://www.easysw.com/~mike/serial/ (a bit more up to date), but the problems I ran into were generally similar to what you seem to be describing- the port seeming to be in an incorrect or unknown state, regardless of the 'standard' way of doing things. Ultimately, I wound up comparing the initial open(), initialization strings via write(), and the termios struct settings to known WORKING code on the problem platforms, #def'fed the hell out of the code, and got most of it working. In this case you should be OK grabbing the source to minicom and doing the same....
I may be missing something obvious in my memory here, but after that one I had no further desire to do serial port/modem coding for quite a while ;-) (And God help me, HP developer support was almost as bad as M$!)
Jean-Marc Francois wrote:
I've posted this question on a newsgroup, but got no response. Is there a cuaa-guru out there ? :-)
Thanks ! Jean-Marc Francois Université de Liège
--------------- I got a strange problem.
I want to send a binary string to a small device I made via /dev/cuaa0.
The port settings should be 19200, 8N1 (no RTS/CTS, no XON/XOFF). Looks simple.
I've written a small program using the standard POSIX API : tcgetattr and the like.
When I launch my program, it doesn't work (well, it works with Linux but not with FreeBSD).
If I first launch minicom (and ask it to setup the serial port), let it in the
background and launch my program, it works.
The problem is that the dump of the 'stuct termios' my program is using with or without
minicom is the same, so that's not the problem (stty -f /dev/cuaa0 gives the same output
I thought all the serial settings were in this structure; where am I wrong ?
Thank if you can help (if you can't, thanks for reading anyway :-) ), JM
--- #> stty -f /dev/cuaa0 speed 19200 baud; lflags: -icanon -isig -iexten -echo iflags: -icrnl -ixon -ixany -imaxbel ignbrk -brkint oflags: -opost -onlcr -oxtabs cflags: cs8 -parenb clocal time 5
--- Dump of struct termios :
c_iflag : 0x1 c_oflag : 0x0 c_cflag : 0xcb00 c_lflag : 0x0 c_cc : 0x4 c_cc : 0xff c_cc : 0xff c_cc : 0x7f c_cc : 0x17 c_cc : 0x15 c_cc : 0x12 c_cc : 0x8 c_cc : 0x3 c_cc : 0x1c c_cc : 0x1a c_cc : 0x19 c_cc : 0x11 c_cc : 0x13 c_cc : 0x16 c_cc : 0xf c_cc : 0x1 c_cc : 0x5 c_cc : 0x14 c_cc : 0xff c_ispeed : 0x4b00 c_ospeed : 0x4b00
[EMAIL PROTECTED] mailing list
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
_______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"